As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INITIAL INSPECTION: CORROSION ON STRINGER SPLICE 22RH BETWEEN FS= 319.70 AND FS333 AT MAIN AVIONICS COMPARTMENT. (SM)(E/E)(TCI: 53-20-304) SUMMARY: STRINGER SPLICE 22RH BETWEEN FS319.70 AND FS333 AT MAIN AVIONICS COMPARTMENT WAS REPLACED PER CRJ-900 SRM 51-42-06-001-001-A01.